Typographical line composing and casting machine



July 20,1926.-

J. G. W. FIELD TYPOGRAPHICAL LINE COMPOSING AND CASTING IAGHINE Filed Oct. 22, 1925 4 Sheets-Sheet l 11 .{p I. i Haw July 20 1926.

J. G. W. FIELD TYPOGRAPHICAL LINE COMPOSING AND CASTING CHINE Filed 1925 4 Sheets-Sheet 3 Inventor July 20, 1926.

- J. G. W. FIELD TYPOGRAPHICAL LINE COMPOSING AND CASTING MACHINE Fild Oct. 22, 1925 4 Sheets-Sheet 4 l lllvlll r- PH- 111mm WM 7 Patented July 20, 1926.

UNITED STATES PATENT OFFICE.

JOSEPH GRACIE WINTER FIELD, OF ALTRINCHAM, ENGLAND, ASSIGNOR 'IO LINOTYPE AND MACHINERY LIMITED, F LQNDON, ENGLAND, A BRITISH COMPANY.

TYIPQGRAPHICAL LINE OOMPOSING AND CASTING MACHINE.

Application flled.0ctober 22, 1925, Serial No.

This invention relates to typographical line composing and casting machines such as those known commercially under the trade mark Linotype and to machines of kindred construction, and it has for its object to provide means which will prevent said machines being re-started after they have been automatically stopped through the incomplete transfer of a composed line from the first elevator to the second elevator, until the cause of such stoppage shall have been disposed of.

The invention may be said essentially to consist in a stop adapted to be interposed into the path of an element movable with or by the starting handle through the movement of the spaceband grabber lever or the matrix pusher lever outwards from its respective normal position, and to be removed from that path not before the corn posed line has been moved completely out of the first elevator.

The invention will now be described by reference to the accompanying drawings in which a Figure 1 is a front elevation of the perti nent parts of a machine embodying one constructional form of the invention;

Figure 2 is an elevation as viewed from the left-hand side of Figure 1;

Figure 3 is a plan partly in horizontal section taken on or about the line 3 3 of Figure 1;

Figures 4 and 5 are views respectively similar to Figures 1 and 2 showing a second constructional form of the invention.

Throughout the different figures of the drawings, like reference numerals are used to indicate like or corresponding parts' In the constructional form of the invention represented in Figures 1, 2 and 3, there is secured on the rear end of the shaft 1 of the well-known bent spaceband' grabber lever 2, a lever arm 3 having a stud 4L adapted to engage the shorter or horizontal arm of a bell-crank lever 5 which is capable of turning about a fixed pivot 6. The longer or vertical arm of the bell-crank lever 5 is connected through a pin-and-slot connection 7 with'the right-hand end of a horizontal rod 8 which is free to move longitudinally in a fixed guide or bracket 9 and over a fixed lug 10. The left-hand end of the rod 8 is 64,101, and in Great Britain October 24, 1924.

nected at one end to a stud on the vertical arm of the bell-crank lever 5 and at the other end to a stationary stud 13 serves to move the rod 8 leftwardly that is to say, in direction opposite to that of the movement imparted by the lever arm 3.

The starting lever bar 11 has fast to it a projection or stud 14 in position to engage a pivoted arm 15 having a screw 16, in the path of which latter, under the action of the spring 12, the sliding rod 8 is held in the position in which it prevents the swinging of the pivoted arm 15 and the forward movement of the starting lever bar 11. The pivoted arm 15 is that which is provided on the lower end of the wellknown clutch control lever 15 (shown more particularly in Figures 4 and 5) which, as is general in existing machines, turns about the axis of a vertical pivot rod 17 and whose upper arm 15 (Figures 4 and 5) serves to release the clutch. 7

So long as either the spaceband grabber lever 2 or the matrix pusher lever is prevented from reaching its normal position, as it would be, for example, through its arrest by some of the elements of a composed line remaining in the first elevator head, so long will the sliding rod 8 remain in position (as shown in Figures 1 and 3) to pre vent the forward motion of the starting lever bar 11 and the consequent re-starting of the machine, although rearward movement of said bar 11 is permissible at all times. When, however, the first elevator has been entirely cleared of the composed line, and the spaceband grabber lever 2, has been allowed to return to its normal position, this return movement has, through the before described parts 1, 5 and 7 also caused the sliding rod 8 to be withdrawn out of the path of the screw 16 so as to leave the starting handle and the bar 11 free to be operated as and when required.

The dotted circle marked 4 in Figure 1, represents the position occupied by the stud 4 when the spaceba-nd grabber lever 2 is in its rightmost position, and the extent to which this circle overlaps the horizontal arm of the bell-crank lever 5 is an indication of the extent to which the lever 5 is swung during the latter part of the rightward movement of the lever 2 towards said rightmost position.

In the second constructional form of the invention which is represented in Figures 4 and 5, the obstruction to the movement of the starting lever bar 11, is constituted by the longer or downwardly extending arm of a bell-crank lever 18 whose shorter arm, by a pin-and-fork connection 19, is engaged with a bent crank arm 20 fast on the rear end of a horizontal shaft 21. This shaft is free to rock in stationary hearings in the machine trame 22 and on its front end has secured a two-branched lever arm 23 each branch of which is provided with an adjustable set screw 24 or 24*, one (24) in the path of the spaceband grabber lever 2, and the other (24 in the path of the matrix pusher lever 25.

The forked or shorter arm of bell-crank lever 18, is so formedas by having the lower of its two tines shorter than the upper one-that when said lever reaches its unobstructive position, in which position it is arrested by a fixed stop 26, as shown in dotand-dash lines in Figure 4, the crank arm 20, in its continued movement, can become disengaged therefrom, said stop serving to maintain the bell-crank lever 18 in position to permit of the engagement being restored during the return swing of the spaceband grabber lever 2, and the consequential restoration of the longer arm of lever 18 into its obstructing position. This last-named restoration is effected by a spring 27 attached at its respectively opposite ends to the two branched lever arm 23 and machine frame 22.

From the foregoing and with particular reference to Figure 4, it will be seen that while the lower lever arm 15* of the last described arrangement. is engaged by the stud 14, and the upper lever arm 15 serves to control the opening and closing of the clutch as in existing machines, the said lever arm 15 in the second constructional form now under review. serves additionally, in its cooperation with the bell-crank lever 18, to prevent the closing of said clutch when ever the operation of the spaceband grabber lever 2 or matrix pusher lever 25 is impeded by elements of a composed line failing to leave the first elevator.

In the normal working of the last described example, during the rightward movement of the matrix-pusher lever '25 when the latter pushes the matrices on to the second elevator, the spaceband grabber lever 2 swings left-ward and engages the two branched lever arm 23 and moves the bell-crank lever 18 into its unobstructing position, that is to say against the stop 26. The matrix pusher lever 25 and spaceband grabber lever 2 are then swung in the reverse directions, i. e. the former to the left and the latter to the right, and, if the composed line has been ellectively cleared from the first elevator, the matrix pusher lever 25 will engage its respective branch-screw 24 and swing the bell-crank lever into its unobstructive position so that the starting lever handle may be actuated as and when necessary. If, on the other hand, part oi the composed line still remains in the first elevator, and consequently, the matrix pusher lever 25 is prevented from reaching the said branch, the downwardly-extending arm of the bell-crank lever 18 remains locked in the path of the upper arm 15 of the clutch control lever 15, so that the starting handle similarly remains locked and will continue in that condition until the composed line has been effectually transferred from the first elevator to the second elevator.

Having described my invention, I declare that what I claim and desire to secure by Letters Patent is 1. In a typographical line composing machine, the combination with an element movable with or by the starting handle, of a stop adapted to be interposed in the path of said element through the movement of the spaceband grabber lever outwards from its respective normal position, and to be removable from that path only when a composed line has been moved completely out of the first elevator.

2. In a typographical line composing machine, the combination with an element movable with or by the starting handle, of astop adapted to be interposed in the path of said element through the movement of the matrix pusher lever outwards from its re- 1 O spective normal position, and to be removable from that path only when a composed line has been moved completely out of the first elevator.

3. In a typographical line composing machine, the combination with the clutch control lever, of a stop movable into and out of the path of an arm of said lever by or through the operation of the spaceband grabber lever.

4. In a typographical line composing machine, the combination with the clutch control lever, of a stop, movable into and out of the path of an arm of said lever by or through the operation of the matrix pusher lever.

5. In a typographical line composing machine, the combination with mechanism according to claim 3, of a spring by which the stop is moved into the path of an arm of the clutch control lever said spring acting antagonistically to the spaceband grabber lever. V

6. In a typographical line composing machine, the combination with mechanism according to claim 3, of a spring by which the stop is moved into the path of an arm of the clutch control lever said spring acting antagonistically to the matrix pusher lever.

7. In a typographical line composing machine, the combination with the starting lever bar, a projection thereon, and a clutch control lever of Which one arm stands in the path of the said projection, of locking means for said arm, means moving the locking means into and out of engagement with the arm, a sp-aceband grabber lever, and devices connecting the spaceband grabber lever with the last-named means for movin the look ing means into disengaging position.

8. In a typographical line composing machine, the combination with the starting lever bar, a projection thereon, and a clutch control lever of which one arm stands in the path of the said projection, of locking means for said arm, means moving the locking means into and out of engagement with the arm, a spaceband grabberlever, devices con necting the spaceband grabber lever with the last-named means for moving the looking means into disengagin position, and a spring for moving the loc ing means into enga ing position.

9. n a typographical line composing machine, the combination with the starting lever bar, a projection thereon, and a clutch control lever of which one arm stands in the path of the said projection, of locking means for said arm, means moving the locking means into and out of engagement with the arm, a matrix pusher lever, and devices con necting the matrix pusher lever with the last-named means for moving the locking means into disengaging position.

10. In a typographical line composing machine, the combination with the starting lever bar, a projection thereon, and a clutch control lever of which one arm stands in the path of the said projection, of locking means for said arm, means moving the locking means into and out of engagement with the arm, a matrix pusher lever, devices connecting the matrix pusher lever with the lastnamed means for moving the locking means into disengaging position, and a spring for moving the locking means into engaging position.

In testimony whereof I have affixed my signature hereto.

JOSEPH GRACIE WINTER FIELD. 

